Advice Should We Visit Nice During Cannes Festival?

Planning a trip from Nice to Florence, then Venice, and finally Munich from May 14-31. Considering the Cannes Festival is happening around that time, should we reverse our travel route to avoid the crowd in Nice, or is it worth experiencing the festival vibe? We're not film buffs, but the cultural aspect sounds intriguing. Any insights on how the festival impacts Nice and if it's a good idea to be there during that period?